20346320254056 has 32 divisors (see below), whose sum is σ = 51031487300640. Its totient is φ = 6760015195968.

The previous prime is 20346320254019. The next prime is 20346320254061. The reversal of 20346320254056 is 65045202364302.

It is a super-2 number, since 2×20346320254056² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20346320253999 and 20346320254017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1380714691 + ... + 1380729426.

It is an arithmetic number, because the mean of its divisors is an integer number (1594733978145).

Almost surely, 2^{20346320254056} is an apocalyptic number.

It is an amenable number.

20346320254056 is an abundant number, since it is smaller than the sum of its proper divisors (30685167046584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20346320254056 is a wasteful number, since it uses less digits than its factorization.

20346320254056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761444433 (or 2761444429 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 20346320254056 in words is "twenty trillion, three hundred forty-six billion, three hundred twenty million, two hundred fifty-four thousand, fifty-six".